Passive in vivo elastography from skeletal muscle noise
- Marine Physical Laboratory, Scripps Institution of Oceanography, University of California San Diego, San Diego, California 92093-0238 (United States)
Measuring the in vivo elastic properties of muscles (e.g., stiffness) provides a means for diagnosing and monitoring muscular activity. The authors demonstrated a passive in vivo elastography technique without an active external radiation source. This technique instead uses cross correlations of contracting skeletal muscle noise recorded with skin-mounted sensors. Each passive sensor becomes a virtual in vivo shear wave source. The results point to a low-cost, noninvasive technique for monitoring biomechanical in vivo muscle properties. The efficacy of the passive elastography technique originates from the high density of cross paths between all sensor pairs, potentially achieving the same sensitivity obtained from active elastography methods.
- OSTI ID:
- 20971922
- Journal Information:
- Applied Physics Letters, Vol. 90, Issue 19; Other Information: DOI: 10.1063/1.2737358; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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